Radeon HD 4870 and Radeon R7 250 - video card comparison
Passmark - benchmark score Radeon HD 4870 vs Radeon R7 250
Radeon HD 4870
1411
Radeon R7 250
1100
Radeon HD 4870
Radeon R7 250
Architecture
TeraScale (2005−2013)
GCN (2011−2017)
GPU code name
RV770
Oland XT
Market segment
Desktop
Desktop
Release date
June 2008
October 2013
Bus support
-
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
N/A
Boost clock speed
-
1050 MHz
Core clock speed
750 MHz
-
Floating-point performance
1,200.0 gflops
716.8 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
956 million
950 million
Pipelines / CUDA cores
800
384
Power consumption (TDP)
150 Watt
75 Watt
Texture fill rate
30.00
25.20
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3600 MHz
1150 MHz
Memory bandwidth
115.2 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DisplayPort support
-
-
DirectX
10.1 (10_1)
DirectX® 12
Mantle
-
-
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
-
AppAcceleration
-
+
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-